Sewing machine attachment



March 18, 1941. E WELL; I Re. 21,754

SEWING MACHINE ATTACHMENT Original Filed Oct. 15, 1936 3 Sheets-Sheet 1 In ventor A Ea/ #6 //c /0. By 2mm Attorneys March 18, 1941. E. HELLE SEWING MACHINE ATTACHMENT Original Filed Oct. 15, 1956 3 Sheets-Sheet 2 Inventor Ear/ fie/Ae 7 I o By A iiorneys March 18, 1941. E, H LLE Re. 21,754

SEWING MACHINE ATTACHMENT Original Filed Oct 15, 1936 3 Sheets-Sheet 5 Hun 1 Inventor Ear/ //6// Q Afiorneys Reissue d Mar. 18, 1941 UNITED STATES PATENT OFFICE SEWING MACHINE *ATTAGHMENT Earl Hello, Beardstown, Ill.,--a s signor of fiftyper cent to Lloyd M.McClure, -Beardstown, Ill.

8 Claims.

This invention relates broadly to sewing machines and more particularly to an attachment therefor for the purpose of rendering the machine useful in maklng'what is generally known in the art as hookedrugs.

An object of the present invention is to provide an attachment of the character suggested which may be readily and easily applied to the machine, and which when so applied will facilitate to a great extent, the making of hooked rugs.

The present invention is also characterized by the provision of a. pair of slidably mounted needles movable in opposite directions relative to one another with one serving to punch a hole through the work, and the other serving to push the yarn through the hole as a part of the. operation in the making or fabricating of hooked rugs or similar articles.

The invention, together with its objects and advantages will be best understood from a study of the following description taken inconnection with the accompanying drawingswhereim- Figure 1 is an elevational viewyillustrating the application of the invention to a sewing machine.

Fig. 2 is an elevational view viewing the attachment from the side thereof opposite to that shown in Fig. 1.

Fig. 3 is a bottom plan view of the attachment with certain parts broken away and shown in section.

Fig. 4 is an elevational view-of a lever member.

Fig. 5 is a detail view showing the hole punching and the yarn pushing needles assembled.

Fig. 6 is an elevational view of the hole punching needle.

Fig. 7 is a side edge elevational view of the yarn follower or pushing needle.

Fig. 8 is a plan view of a guide.

Fig. 9 is a fragmentary perspective view, of a bracket plate illustrating certain details hereinafter more fully referred to, and

Fig. 10 is a perspective'view of a lug-equipped plate hereinafter more fully'referred to.

Referring more in detail to the drawings,-it will be seen that in the preferred embodiment thereof, the invention comprises an attachment plate 2, which in the embodiment illustrated is adapted to replace the regular bobbin COVET'OD a sewing machine. Plate 2 is provided with anangular material guide 3 provided with a slot .BPfor a purpose hereinafter made manifest.

Also attached to the head ,of the sewing machine through the medium of thescrewsor the like It is .a. headplatei t at is adduatedto-replace the-regular head plate on a sewing machine.

Further in accordance with the present invention, there is attached to the bottom end of the regular needle bar 5 of the sewing machine Laterally mounted on the shank 9 of needle 8 is :1

a roller l6 which operates in the slot I provided therefor in guide sleeve I, and extends into a notch 2| provided in a lever 2 I ,hereinafter more specifically referred to.

Arranged in the path of the rollerit is the. angularly disposed end 1 of a lug I provided on one edge of a plate I secured to and spaced from the lever 2| and asindicated generally at 22.

The lever 2| at one end is pivoted to the head plate 6 as at l5, whileat its relatively opposite end the lever 2| is provided with a slot in which works a pin 23 projecting laterally from the head It.

Threaded through the lugend l is a spring tensioned bolt-or screw II that has lts-inner-end. arranged-to bear on the aforementioned roller 16. Thus it will be seen that as lever 2| swings upwardly or in a counterclockwise directionthe lower edge of slot 2| engages the roller l6 mounted on the shank 9-of needleB causing needle 8150 move upwardly. Also, as lever 2| swings downwardly or in a clockwise direction the screw ll engages the laterally extending roller 16 with the result that this downward. movementlof lever 2 I is transmitted to theshank .9 of. needle 8 for: movingv needle .8 downwardly. Thus it will be clearly seen that the movement of the lever 2| istransmitted to the needle 8 for raising and lowering the same. To. vary :the length of movement of needle 8 as may .be required for different materials. screw I Iis adjusted relative to roller 16 as may be required to .cause the'needle to move more or less eply ihtothematerial to allow :fo-r the entry of heavy, or light yarn, respectively. Further in connection with the operation of the device it will be understood that the needle 8 is provid wi h the u u l eye-11. throushwhich th rarn isqthreeded. th ha of yamor other 1 184311811 be n eld ntth la o th operato or in any convenient receptacle on the table of its ends, the lever 4 is provided with a slot which accommodates a pin l3 projecting laterally from the inner side of the head plate 6. At its lower end, the lever 4 is provided with a slot l4 to receive the aforementioned pin 23. Thus it will be seen that the movement of the needle bar-5 will also be transmitted through the medium of the.

lever 4 to the yarn pushing needle III! for moving the needle lil up and down relative to the needle 8 for pushing the yarn through the hole first punched by the needle 8 in the burlap or other fabric carrying the design of the hooked rug being made.

From the description of the invention thus far, it will be seen that as the lever 2|, in response to the upward movement of the needle bar 5 swings on its pivot I5, in a counter-clockwise direction, needle 8 will be caused to move upwardly, while at the same time lever 4 in response to the upward movement of the needle bar 5 will also ,swing in a counter-clockwise direction for transmitting a downward movement to the needle I0",

to the end that the needles 8 and Ill slide relative slot I as shown in Fig. 9. Also, and as will be clear from a study of Figs. 1 and 2, slot} accommodates the needles 8 and Hi".

In actual practice, the material is fed over the guide 3 and supported thereby, and with the sewing machine in operation, first the hole punching needle 8 moves downwardly through the slot 3 to punch a hole in the cloth. Manifestly, the hole punching needle 8 will move downwardly in response to the downward movement of the needle bar 5. As the needle bar 5 begins to rise, the hole punching needle 8 will also begin to rise while theneedle ill will start downwardly. The timing of the operation is such that before the punch needle 8 is actually withdrawn from the work, needle l0 engages the yarn for forcing the yarn through the holes made by the needle 8. Due to the differences in the lengths of levers 2| and 4, the punch needle 8 has sufii cient time to operate before the same rises from the goods for the next stitch; and further, this difference in length between the levers, together with the position of their respective fulcrums l5, I3 brings about the opposite motions of themedles 8 and Ill.

The plate 6 is also provided with a suitably located slot 20 to accommodate the usual thread take-up lever on the sewing machine.

Also for securing the needle 8 at the desired adjustment, screw I1 is loosened, needle 8 is positioned at the desired adjustment after which Having thus described the invention, what is claimed as new is:

1. In combination with a sewing machine having a head and a reciprocating needle bar, an attachment plate set on the base of the machine and serving as a bobbin cover, said plate having a material guide rising therefrom, and said guide having a lateral end portion provided with a slot, a plate secured to the head of the machine and provided with a tubular guide formation, a hole punching needle having a sliding fit in said tubular guide formation and a working end adapted to pass through the slot in said guide incidental to punching a hole in the material, a needle for pushing yarn through the hole punched by the punching needle and having a sliding fit with the hole punching needle, and mechanism operatively connecting the needle bar of the sewing machine with the hole punching needle and the yarn pushing needle respectively for transmitting movement of the needle bar to the hole punching and yarn pushing needles respectively for reciprocating said needles in reverse directions relative to one another.

2. In combination with a sewing machine having a head and a reciprocating needle bar, an attachment plate set on the base of the machine and serving as a bobbin cover, said plate having a material guide rising therefrom, and said guide having a lateral end portion provided with a slot, a plate secured to the head of the machine and provided with a tubular guide formation, a hole punching needle having a sliding fit in said tubular guide formation and a working end adapted to pass through the slot in said guide incidental to punching a hole in the material, a needle for pushing yarn through the hole punched by the punching needle and having a sliding fit with the hole punching needle, mechanism operatively connecting the needle bar of the sewing machine with the hole punching needle and the yarn pushing needle respectively for transmitting movement of the needle bar to the hole punching and yarn pushing needles respectively for reciprocating said needles in reverse directions relative to one another, said mechanism including a lever pivoted at one end to said plate and having at its respective opposite end a lost motion connection with said needle bar, and interengaging means on the 'hole punching needle and on said lever for transmitting movement of said lever to the hole punching needle.

3. In combination with a sewing machine having a head. and a reciprocating needle bar, an attachment plate set on the base of the machine and serving as a bobbin cover, said plate having a material guide rising therefrom, and said guide having a lateral end portion provided with a slot, a plate secured to the head of the machine and provided with a tubular guide formation, a hole punching needle having a sliding fit in said tubular guide formation and a working end adapted to pass through the slot in said guide; incidental to punching a hole in the material, a needle for pushing yarn through the hole punched by the punching needle and having a sliding fit with the hole punching needle, mechanism. operatively connecting the needle bar of the sewing machine with the hole punching needle and the yarn pushing needle respectively for transmitting movement of the needle bar to the hole punching and yarn pushing needles respectively for reciprocating the said needles in reverse directions relative to one another, said mechanism including a lever its respective opposite end a lost motion connection with said needle bar, interengaging means on the hole punching needle and on said lever for transmitting movement of said lever to the hole punching needle, and a second lever pivoted intermediate its ends to said plate and having one end pivoted to the yarn pushing needle, and at its respective opposite end having a lost motion connection with said needle bar.

4. In an attachment for sewing machines, a plate adapted to be attached to the head of a sewing machine in the place of the usual head plate, said attaching plate being provided intermediate its ends with a tubular guide formation, a pair of nested needles having a working fit within said tubular guide formation and including a hole punching needle and a yarn forcing needle, said hole punching and yarn forcing needles being mounted for sliding movement in reverse directions relative to one another, and mechanism connecting said needles with the usual needle bar of the sewing machine for transmitting movement of the needle bar to said needles.

5. In combination with a sewing machine having a reciprocating needle bar, a supporting frame provided with means for attachment to the machine and also provided with guide means, a hole punching needle having a sliding fit in said guide means and a working end adapted to punch a hole in the material, a needle for pushing yarn through the hole punched by the punching needle and having a sliding lit with said punching needle, means carried by said frame for connecting the needle bar of the machine with the hole punching needle and the yarn pushing needle for reciprocating said needles inreverse directions relatively to each other, and a material supporting member securable to the bed of the machine, said memher having a slot through which the end of the 40 hole punching needle passes.

presenting a guideway, a pair of nested needles having a sliding fit in said guideway and including a hole punching needle and a yarn forcing needle, said needles being mounted for sliding movement in reverse directions relatively to one another, and mechanism carried by said supporting member for connecting said needles with the usual needle bar of the sewing machine for transmitting movement of the needle bar to said needles.

7. In combination with a sewing machine having a reciprocating needle bar, an attachment therefor comprising a supporting frame member adapted for attachment to the machine, a pair of nested needles including a hole punching needle and a yam forcing needle, said needles being guided for vertical reciprocating movement on said frame and for sliding movement in reverse directions relative to one another, and mechanism carried by said frame member for connecting said needles with the usual needle bar of the sewing machine for transmitting movement of the needle bar to said needles but in opposite directions.

8. In combination with a sewing machine having a reciprocating needle bar, an attachment therefor comprising a supporting frame member adapted for attachment to the machine, a pair of nested needles including a hole punching needle and a yarn forcing needle, said needles being guided for vertical reciprocating movement on said frame and for sliding movement in reverse directions relatively to one another, and mechanism carried by said supporting member for connecting said needles with the usual needle bar of the sewing machine for transmitting movement of the needle bar to said needles, said mechanism including a pair of levers connected to the needle bar and to the needles and pivoted on the supporting frame, the pivotal points of said levers being so related to the connection with the needles that one of the latter is operated in a direction opposite to that of the other.

EA HELLE1 

